Link Aggregation how tos

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本文介绍如何使用CLI命令配置接口以实现链接聚合，并提供检查静态配置端口数量、动态配置端口数量及聚合速度的方法。

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How do I configure an interface to use link aggregation using CLI commands?

If port 2 and port 3 are available, the following CLI commands create an aggregate called "link_agg" with an IP/netmask of 172.168.1.2/255.255.255.0 on the root vdom using those two interfaces. You can optionally set other interface settings.

config system interface
   edit "link_agg"
      set vdom "root"
      set ip 172.168.1.2 255.255.255.0
      set type aggregate
      set member "port2" "port3"
end

How do I configure my HA setup to use link aggregation?

In the HA section of the there is a very good explanation and diagram showing an easy way to configure two FortiGate units in an HA configuration using link aggregation.

How do I check the number of staticly configured ports in a trunk?

Use the following CLI command:

show system interface <trunk-name>

How do I check the number of dynamically configured ports in a trunk and in use?

Use the following CLI command:

diagnose netlink interface name <trunk-name>

How do I check the aggregate speed of a trunk?

This is not currently supported. However as mentioned above in MR1 and up you can use SNMP to find the aggregate speed of the trunk.